Six weeks after the U.S. FDA issued an alert, the EMA is following suit and starting a review of the safety of six approved CAR T-cell cancer therapies, following 23 reports of patients developing secondary cancers. The EMA said such malignancies were considered “an important potential risk” at the time of approval and are included in the risk management plan. Close monitoring is in place, with companies required to conduct long-term safety and efficacy follow-up studies and to file safety update reports.